During these searches, I’ve found this URL helpful to find out the character appearing.http://www.fileformat.info/info/unicode/char/search.htm and I came to know it was “Unicode character U+FEFF: ZERO WIDTH NO-BREAK SPACE?”

Later my searches narrowed to just finding and removing ZERO WIDTH NO-BREAK SPACE, I wasn’t able to remove or find it/them out using Notepadd++ or even Vim editor (My Bad!)